Ah, stupid me. Thanks!
From: sqlalchemy@googlegroups.com [mailto:sqlalchemy@googlegroups.com] On Behalf Of Michael Bayer Sent: Monday, May 27, 2013 6:26 PM To: sqlalchemy@googlegroups.com Subject: Re: [sqlalchemy] Self-referencing row and CircularDependencyError On May 27, 2013, at 5:16 AM, Alexey Vihorev <viho...@gmail.com> wrote: Hi! Can I handle this situation properly, if at all? Base = declarative_base() class Person(Base): __tablename__ = 'persons' id = Column(Integer, primary_key=True) best_friend_id = Column(Integer, ForeignKey('persons.id')) best_friend = relationship('Person', remote_side = 'Person.id') Base.metadata.create_all(sa_engine) person = Person() person.best_friend = person #<<< problematic self-reference s.add(person) s.commit() #sqlalchemy.exc.CircularDependencyError: Circular dependency detected. it will work with post_update class Person(Base): __tablename__ = 'persons' id = Column(Integer, primary_key=True) best_friend_id = Column(Integer, ForeignKey('persons.id')) best_friend = relationship('Person', remote_side = 'Person.id', post_update=True) -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to <mailto:sqlalchemy+unsubscr...@googlegroups.com> sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to <mailto:sqlalchemy@googlegroups.com> sqlalchemy@googlegroups.com. Visit this group at <http://groups.google.com/group/sqlalchemy?hl=en> http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit <https://groups.google.com/groups/opt_out> https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to <mailto:sqlalchemy+unsubscr...@googlegroups.com> sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to <mailto:sqlalchemy@googlegroups.com> sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
